20280386

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{563}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 36384768

約数和(自身を除く): 16104382

約数列:

[1, 2, 7, 14, 31, 62, 83, 166, 217, 434, 563, 581, 1126, 1162, 2573, 3941, 5146, 7882, 17453, 18011, 34906, 36022, 46729, 93458, 122171, 244342, 327103, 654206, 1448599, 2897198, 10140193, 20280386]

約数ペア:

[(1, 20280386), (2, 10140193), (7, 2897198), (14, 1448599), (31, 654206), (62, 327103), (83, 244342), (166, 122171), (217, 93458), (434, 46729), (563, 36022), (581, 34906), (1126, 18011), (1162, 17453), (2573, 7882), (3941, 5146)]